Abstract
Ozone concentrations of indoor air were measured in dwellings in three areas of Greece, namely Athens, Salamina Island and Zakynthos Island. The measurements were conducted as a function of the following four parameters: the time during the day, the time period that the openings of a dwelling (windows, doors) remained closed, the degree of urbanization and the floor of the dwelling. The statistical analysis of the data showed that there was a strong dependence of the indoor ozone levels on the first three of the above mentioned parameters while this was not the case for the floor of the dwelling. The indoor versus outdoor ozone levels (I/O ratios) were calculated and their dependence on the same four experimental parameters was also examined.
Highlights
The study of indoor air quality (IAQ) is an active research field for more than 30 years
It is noted that the measurements taken in 9 basements have not been included in Figures 1-3 since in this type of dwellings, all measured ozone levels were equal to zero in all daytimes
This is not an unexpected result since research has shown that the main source of indoor ozone (>95%) is transport from the outdoor environment [15]
Summary
The study of indoor air quality (IAQ) is an active research field for more than 30 years. The mean indoor ozone concentrations of steps 2, 3 and 4 (Codes: b, c and d respectively) show pairwise statistically significant differences (p
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